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Finding the Fourth Proportional to 279,240.66, 419,035.95 and 113,028.66

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Solution

The fourth proportional to 279,240.66, 419,035.95 and 113,028.66 is: 169,613.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,240.66 : 419,035.95 = 113,028.66 : x
  2. Step 2: Convert to fraction form
    279,240.66/419,035.95 = 113,028.66/x
  3. Step 3: Cross multiply
    279,240.66x = 419,035.95 × 113,028.66
  4. Step 4: Simplify right side
    279,240.66x = 47,363,071,920.33
  5. Step 5: Solve for x
    x = 47,363,071,920.33/279,240.66
  6. Step 6: Final answer
    x = 169,613.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.